Experiments and models for the thermal response of railroad tapered-roller bearings

Constantine M. Tarawneh, Kevin D. Cole, Brent M. Wilson, Fadi Alnaimat

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

The need to understand and quantify the heat transfer paths within tapered-roller bearings is of great importance in the railroad industry since bearing cup temperature measurement is the primary tool utilized in the removal of distressed bearings from service. Experiments were performed to acquire temperature histories at several locations on a stationary bearing subjected to heat sources imbedded in two rollers. The experimental results were compared to zero- and first-order thermal models to estimate overall heat transfer coefficients from the bearing. The results presented here can be used to explain some of the mechanisms that lead to overheating of tapered-roller bearings.

Original languageEnglish (US)
Pages (from-to)5794-5803
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume51
Issue number25-26
DOIs
StatePublished - Dec 2008

Keywords

  • Bearing thermal models
  • Bearing thermal response
  • Heat dissipation paths
  • Heat transfer coefficient estimation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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